F(-2)=3x+12

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Solution for F(-2)=3x+12 equation: 



(-2)=3F+12

We move all terms to the left:

(-2)-(3F+12)=0

We add all the numbers together, and all the variables

-(3F+12)-2=0

We get rid of parentheses

-3F-12-2=0

We add all the numbers together, and all the variables

-3F-14=0

We move all terms containing F to the left, all other terms to the right

-3F=14

F=14/-3

F=-4+2/3

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